NMR (CDCl3): 3.04 (3H, s), 3.85 (6H, s), 4.06 (2H, s), 4.22 (2H, s), 7.00−7.65 (3H, m). MS: 292 (100, M), 261 (16). Exact Mass: Found: 292.1070. Calc. for C14H16N2O5: 292.1059. View chapterExplore book LIPIDS | Gas Chromatography A. Kuksis, in Encyclopedia ...
32 Figure 14 shows multidimensional analysis using HPLC-UV followed by collection of the eluent and analysis with proton NMR of each slice. For each of the HPLC peaks, an NMR spectrum was obtained, which, when combined with HPLC-UV retention and spectral data, provided a fully unambiguous ...
electron acceptorA novel borate ester (BE)-grafted carboxylated acrylonitrile butadiene rubber (XNBR) was synthesized. From Fourier transform infrared, 1H NMR and elemental analyses, the borate ester was successfully grafted to XNBR, resulting in a more flexible XNBR chain as revealed by differential ...
The infra-red (IR) spectrum showed an OH (3536 cm−1) and one γ-lactone carbonyl peak (1761 cm−1). In the upper part of the structure of 1 (Fig. 1), the aromatic furan was characterised by 1H NMR signals at δ 6.47 (H-14), δ 7.54 (H-15) and δ 7.61 (H-16) (...
1H-NMR (dimethylsulfoxide-d6), 8.64 [Ha + Hb, 4H (relative inte- grated intensity: 3.99H)], 8.31 [Hc, 2H (2.05H)], 7.47–7.37 [He + Hf, 2H (2.00H)], 7.09 [Hd, 1H (0.994H)], 3.80 [R = OCH3, 3H (3.00H)]. The product also provided a sharp DSC peak ...
After heating under reflux for 5 hours, sampling, and examination by IR, disappearance of the SiH peak was confirmed. A polymer designated as FP-2 was recovered by removing the solvent by distillation in vacuo. The results of analyses by GPC, NMR, and IR confirmed FP-2 to be the ...
Figure 28.The 150-MHz13C NMR spectra of poly(methyl methacrylate-co-methyl acrylate) with varying monomer composition. Reprinted fromKim, Y.; Harwood, H.J. Polym.2002,43, 3229,43Copyright 2002, with permission from Elsevier. Sign in to download full-size image ...
(KBr): 3125, 3062, 2985, 2969, 2923, 1684, 1527, 1494, 1369, 1280, 1234, 1190, 1048, 795, 738, 6891H NMR (CDCl3, 400 MHz) 8.26 (d, J= 8.8 Hz, 1H), 7.48 (d, J=3.2 Hz, 1H), 7.38-7.36 (m, 2H), 7.27-7.25 (m, 3H), 7.23 (d, J=3.2Hz, 1H), 7.07 (dd, ...
aThe 1H NMR signal from H-12 to H-17 were observed as a broad signal with an integration value of 12H. was established as same as those of 2 by the comparison of NMR chemical shit values between 1 and 2 in both of DMSO-d6 and MeOH- d4 and NOESY correlations in CDCl3 between ...
1H-NMR (CDCl3, δ ppm); 0.88 (t, 3H), 0.92 (t, 3H), 1.29-1.50 (m, 10H), 1.58-1.67 (m, 2H), 2.33-2.40 (m, 1H) Example 1 Production of mixed ester of pentaerythritol with 3,5,5-trimethylhexanoic acid and 2-propylheptanoic acid in molar ratio (3,5,5-trimethylhexanoic acid...